Add Notification Recipients section

Author: BastianLedererIcinga

library/Icingadb/Widget/Detail/HostDetail.php

@@ -51,7 +51,8 @@ protected function assemble()
             400 => $this->createComments(),
             401 => $this->createDowntimes(),
             500 => $this->createGroups(),
-            501 => $this->createNotifications(),
+            501 => $this->createNotificationRecipients(),
+            502 => $this->createConfiguredContacts(),
             510 => $this->createAffectedObjects(),
             600 => $this->createCheckStatistics(),
             601 => $this->createPerformanceData(),

library/Icingadb/Widget/Detail/ObjectDetail.php

@@ -27,6 +27,7 @@
 use Icinga\Module\Icingadb\Model\DependencyNode;
 use Icinga\Module\Icingadb\Model\Service;
 use Icinga\Module\Icingadb\Model\UnreachableParent;
+use Icinga\Module\Icingadb\Notifications\IncidentFinder;
 use Icinga\Module\Icingadb\Redis\VolatileStateResults;
 use Icinga\Module\Icingadb\Web\Navigation\Action;
 use Icinga\Module\Icingadb\Widget\ItemList\ObjectList;
@@ -381,7 +382,7 @@ protected function createNotes()
         return $content;
     }
 
-    protected function createNotifications(): array
+    protected function createConfiguredContacts(): array
     {
         [$users, $usergroups] = $this->getUsersAndUsergroups();
 
@@ -399,8 +400,16 @@ protected function createNotifications(): array
             );
         }
 
+        if (
+            Icinga::app()->getModuleManager()->hasEnabled('notifications')
+            && ! $userList->hasContent()
+            && ! $usergroupList->hasContent()
+        ) {
+            return [];
+        }
+
         return [
-            Html::tag('h2', t('Notifications')),
+            Html::tag('h2', t('Configured Contacts')),
             new HorizontalKeyValue(
                 t('Contacts'),
                 $userList->hasContent() ? $userList : new EmptyState(t('No contacts configured.'))
@@ -414,6 +423,94 @@ protected function createNotifications(): array
         ];
     }
 
+    protected function createNotificationRecipients(): array
+    {
+        if (! Icinga::app()->getModuleManager()->hasEnabled('notifications')) {
+            return [];
+        }
+
+        $incidents = IncidentFinder::forObject($this->object);
+        if (! $incidents->hasIncident()) {
+            return [];
+        }
+
+        $recipientIcons = [
+            'contact' => Icons::USER,
+            'contactgroup' => Icons::USERGROUP,
+            'schedule' => 'calendar',
+        ];
+
+        $translatedTypes = [
+            'contact' => t('Contact'),
+            'contactgroup' => t('Contact Group'),
+            'schedule' => t('Schedule'),
+        ];
+
+        $subscribers = [];
+        $recipients = [];
+        foreach ($incidents as $incident) {
+            foreach ($incident->getSubscribers() as $subscriber) {
+                $isManager = $subscriber['role'] === 'manager';
+                $changedAt = DateFormatter::formatDateTime($subscriber['roleChangedAt']->getTimestamp());
+
+                $subscriberItem = Html::tag('li', [
+                    'title' => $isManager
+                        ? sprintf(t('%s acknowledged on %s'), $subscriber['full_name'], $changedAt)
+                        : sprintf(t('%s subscribed on %s'), $subscriber['full_name'], $changedAt)
+                ], Text::create($subscriber['full_name']));
+
+                if ($isManager) {
+                    $subscriberItem->addHtml(
+                        Html::tag(
+                            'span',
+                            ['class' => ['ack-badge']],
+                            [
+                                new Icon('check-circle'),
+                                Text::create('ack')
+                            ]
+                        )
+                    );
+                }
+
+                $subscribers[] = $subscriberItem;
+            }
+
+            foreach ($incident->getRecipients() as $recipient) {
+                $icon = new Icon($recipientIcons[$recipient['type']]);
+                $name = $recipient['full_name'] ?? $recipient['name'];
+                $recipients[] = Html::tag(
+                    'li',
+                    [
+                        'title' => sprintf(
+                            '[%s] %s',
+                            $translatedTypes[$recipient['type']],
+                            $name
+                        )
+                    ],
+                    Html::tag(
+                        'span',
+                        ['class' => 'recipient'],
+                        [$icon, Text::create($name)]
+                    )
+                );
+            }
+        }
+
+        $subscribersValue = empty($subscribers)
+            ? new EmptyState(t('No subscribers.'))
+            : Html::tag('div', ['class' => 'subscriber-list'], $subscribers);
+
+        $recipientsValue = empty($recipients)
+            ? new EmptyState(t('No recipients.'))
+            : Html::tag('div', ['class' => 'recipient-list'], $recipients);
+
+        return [
+            Html::tag('h2', t('Notification Recipients')),
+            new HorizontalKeyValue(t('Subscribers'), $subscribersValue),
+            new HorizontalKeyValue(t('Recipients'), $recipientsValue),
+        ];
+    }
+
     protected function createPerformanceData(): array
     {
         $content[] = Html::tag('h2', t('Performance Data'));

library/Icingadb/Widget/Detail/ServiceDetail.php

@@ -29,7 +29,8 @@ protected function assemble()
             400 => $this->createComments(),
             401 => $this->createDowntimes(),
             500 => $this->createGroups(),
-            501 => $this->createNotifications(),
+            501 => $this->createNotificationRecipients(),
+            502 => $this->createConfiguredContacts(),
             510 => $this->createAffectedObjects(),
             600 => $this->createCheckStatistics(),
             601 => $this->createPerformanceData(),

public/css/widget/notification-recipients.less

@@ -0,0 +1,27 @@
+// SPDX-FileCopyrightText: 2026 Icinga GmbH <https://icinga.com>
+// SPDX-License-Identifier: GPL-3.0-or-later
+
+.recipient-list li, .subscriber-list li {
+  display: inline-block;
+  line-height: 2;
+
+  .ack-badge {
+    margin-left: .25em;
+  }
+
+  &:not(:last-child)::after {
+    content: ',';
+    margin-right: .25em;
+  }
+}
+
+.recipient-list .recipient {
+  .rounded-corners(1em);
+  padding: .25em .5em;
+  background-color: @gray-lighter;
+  white-space: nowrap;
+
+  i {
+    color: @text-color-light;
+  }
+}